Sudden deafness is a common clinical disease, the cause of which is still not completely clear, and the annual incidence is 5%-20% of the total number of people. According to the clinical observation of our department, the incidence of this disease has been increasing year by year in the past 10 years, and it is getting younger and younger, the average age of onset is about 45 years old, and there are slightly more men. Under the guidance of the theory of Chinese medicine, the author used warm acupuncture with acupoint injection to treat sudden deafness and achieved satisfactory results. Deafness belongs to the category of “tyrannical deafness” and “sudden deafness” in Chinese medicine. It is often caused by wind-heat invasion, upward violation of the clear yang; or loss of hepatic circulation, depression and fire, upward rebellion of the fire of liver and gallbladder; or qi stagnation and blood stasis, and poor operation of qi and blood in the ear orifices and veins, resulting in deafness due to occlusion of the ear orifices and lack of sound in the ear. That is, the “Medical Lin Correction” cloud: “The two ears are connected to the brain, and the sound of hearing is returned to the brain, …… ear orifice to the brain in the pathway, if there is a blockage, so the ear is deaf.” Modern medicine, on the other hand, believes that sudden deafness is caused by microcirculatory disorders in the inner ear, causing the onset of ischemia in the inner ear. Accordingly, we believe that the treatment of sudden deafness should be based on activating the blood and opening the orifices to enlighten and close them. Since the hand-sun branch vein enters the ear and the hand-foot-shaoyang meridian is all around the front and back of the ear, the author selects the Ear Gate, Hearing Palace, Hearing Hui, and Zhongzhu points for acupuncture to channel the meridian qi of Shaoyang and Sun, one taking the meaning of “where the meridian passes, the main treatment reaches”, and the other taking the close treatment effect of the meridian points. Modern clinical studies have shown that acupuncture at the Ear Gate, Hearing Gong, and Hearing Hui can change the hyperviscosity of patients with sudden deafness, improve the deformability of red blood cells, and reduce blood viscosity, which has a definite effect on sudden deafness. The acupuncture point XIAOGUAN is a facial meridian of the foot Yangming Stomach meridian, which is the meeting of foot Yangming and Shaoyang, plus the important meridian point ZHONG ZHU of the Sanjiao meridian, which is mainly used for treating nerve deafness and tinnitus, and the combined use of all the acupuncture points is effective in unblocking the ear channels and opening and closing the orifices. Warm acupuncture is a method combining acupuncture and moxibustion, which has the functions of warming the meridians, activating blood circulation, warming the yang and replenishing the deficiency, and so on. Medical experiments have shown that moxibustion can adjust the body temperature and plasma osmolarity at the lesion site, activate the meridian circulation, enhance the body’s immune function, improve local blood circulation, and dissipate inflammation. The clinical practice of our department for many years proves that the application of warm acupuncture can effectively enhance the function of benefiting qi and ears, clearing the passages and facilitating the orifices. The chemical name of Mecobalamin is methylcobalamin, also known as methylvitamin B12, which is the active metabolite of vitamin B12 in the body and is a glycolytic vitamin. It can participate in the metabolism of nucleic acids, proteins and lipids, promote the synthesis of nucleic acids and proteins and nerve myelin in nerve cells, and thus repair the damaged peripheral nerves. The high concentration of methylcobalamin enters the organelles of the auditory nerve cells, which can better and faster promote the synthesis of nucleic acids and proteins and the activation of Na, K2 and ATP enzymes in the cochlear vascular striatum, thus rapidly repairing the damaged auditory nerve tissue.